Technical Gas Ar-CO₂ Blend — consistent argon and carbon dioxide mixtures for stable arcs
Technical Gas Ar-CO₂ Blend from REAL GAZ combines high purity argon with carefully metered carbon dioxide to give a stable, predictable shielding atmosphere for MAG welding.
Each mixture is blended gravimetrically so that the CO₂ fraction stays within tight tolerance from the first cylinder to the last.
Each mixture is blended gravimetrically so that the CO₂ fraction stays within tight tolerance from the first cylinder to the last.
Typical ratios include 82/18, 85/15, 90/10 and 92/8 argon to CO₂, falling into groups M20 and M21 of EN ISO 14175. A higher CO₂ share raises penetration and arc energy, while a leaner share reduces spatter and gives a flatter, smoother bead on thin sheet. Our technical team helps match the ratio to wire diameter, transfer mode and joint design.
Handling notes: carbon dioxide mixtures should be stored upright in a ventilated, dry area at temperatures below 50°C. Use a regulator and flowmeter intended for Ar-CO₂ and set the flow to roughly 12 to 18 litres per minute for MAG work. Heated regulators are worth considering on high-CO₂ mixtures at high flow, because expansion cooling can otherwise cause unstable flow. Keep hoses short, check for leaks with soapy water and close the cylinder valve at the end of each shift.
REAL GAZ supplies this product according to EN ISO 14175, ISO 6142-1 and ISO 17025 practice, suitable for industrial fabrication and laboratory reference use.
🏭 Where Ar-CO₂ Blends Are Used
- ⚙️ Structural steel fabrication — Ar-CO₂ blends deliver deep fusion on carbon steel beams, plates and frames built to EN 1090;
- 🚗 Automotive components — short-circuit and spray transfer on chassis parts benefit from low spatter and repeatable bead profile;
- 🏗️ Pressure vessels and pipework — root and fill passes on carbon steel pipe rely on a steady arc and consistent gas coverage;
- 🚜 Agricultural and heavy machinery — thick-section joints on booms, frames and buckets are welded with high deposition rates.
💡 Why Choose REAL GAZ
- ✅ Tight CO₂ tolerance — gravimetric blending keeps the ratio uniform, so weld parameters do not drift between batches;
- 🧪 Dry, clean base gas — low moisture and oxygen levels protect against porosity and hydrogen-related defects;
- 🎯 Ratio matched to the job — we advise on 8%, 15% or 18% CO₂ according to material thickness and transfer mode;
- 🔒 Reliable supply chain — planned refills and cylinder tracking limit unplanned shop-floor downtime;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- argon purification before blending;
- gravimetric CO₂ dosing with calibrated balances;
- dew point and impurity analysis of each lot;
- valve leak testing and pressure integrity checks.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ supplies every Technical Gas Ar-CO₂ Blend to workshops, shipyards and manufacturers in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. Standard cylinders, bundles and larger packs are available, and we can advise on regulators, flowmeters and hose selection to complete a correct shielding set-up.
REAL GAZ — Right ratio, steady arc, clean weld.